Why do the iroquois call the muskrat earth-diver?

In the sentence above, which verb is the irregular verb? a. laid b. warmed c. removed d. walked

How do pip's feelings of guilt in chapter 6 fluctuate? a. he feels both guilty and exhilarated by the opportunity to interact with a convict. b. he doesn't feel any true guilt, but rather fear that he will be caught and self-loathing that he stole. c. he feels guilty, but only until the convict is found. d. he feels guilty for lying to joe, but not for stealing from mrs. joe, because he doesn't love her.

Wiesel interrupts the narration that begin with, "a few ss officers wandered through the room, " with a parenthetical insertion. explain the purpose of the insertion.